CrypKey Protection

I am trying to reverse a target using CrypKey 5.6 Build 1015.

More specifically it is used in a DLL which is part of an API for some expensive specialised hardware. Because of this I need to reverse it myself.

The problem is I can find very little information on Crypkey. The only two examples I have are:

http://www.google.co.uk/search?q=cache:Bm3umuULO8gJ:www.woodmann.com/crackz/Tutorials/Crypkey1.htm+CrypKey+5+Tutorial&hl=en

But this goes into code injection etc which is far too advanced for my understanding,

and:

http://www.google.co.uk/search?q=cache:LraLTVDm_yAJ:www.woodmann.com/fravia/marycri1.htm+CrypKey+reverse&hl=en

Unfortunately this is for a much older version of CrypKey than what I'm targeting.

I'm really looking for some more tutorials, advice or further sources of information that will be helpfull to me.

I couldn't find the 'Search' functions on these forums to find any pre-existing answers to this problem as I'm sure there must be. I haven't tried to reverse in years (never passed novice) and I'm still new to these forums so please be gentle with me.

I wasn't sure if this post was more appropriate in 'Requests' but I'm locked out from posting in there.